A strange div bug on Linux x86_64, (both dmd & ldc2): long -5000 / size_t 2 = 9223372036854773308
mingwu at gmail.com
Thu Aug 13 19:11:24 UTC 2020
On Thursday, 13 August 2020 at 19:03:38 UTC, H. S. Teoh wrote:
> On Thu, Aug 13, 2020 at 06:51:09PM +0000, mw via Digitalmars-d
>> On Thursday, 13 August 2020 at 18:40:40 UTC, matheus wrote:
>> > On Thursday, 13 August 2020 at 13:33:19 UTC, bachmeier wrote:
>> > > ...
>> > > The source of wrong behavior is vec.length having type
>> > > ulong. It
>> > > would be very unusual for someone to even think about that.
>> > May I ask what type should it be?
>> Signed (size_t, the length of the machine's address space)
> size_t is unsigned, because the address space of a 64-bit
> machine is 2^64, but a signed value would only be able to
> address half of that space (2^63).
Yes, I know that, that's why I put it in the brackets.
But for practical purpose: half that space is large/good enough,
2^63 = 9,223,372,036,854,775,808, you sure your machine have that
much memory installed? (very roughly, 9G of GB?)
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